Cotton gin



v Dec. 1s, 1925s. 111,4??694 C'. L. DICKERMAN ET AL.

COTTON GIN Filed Nov. 2o. 1920 Patented Dec, i8, i923.

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COTTON GIN.

Application filed. November 20, 1920.

To all 'whom t may concern:

Be it known that we, CHARLES L. Dionne- MAN and 'WILLIAM E. CUMMINGs,citizens of the United States, residing at Houston, in the county ofHarris and State of Texas, have invented certain new and useful lmnprovements in a Cotton Gin, of which the following is a specification.

This invention relates to new and useful improvements in a cotton gin.

One object of the invention is to provide a gin whereby lint cotton maybe ginned or stripped from the seed with little injury to the lint, andthe seed and lint then discharged separately from the gin.

Another object of the invention is to provide a gin which is of simpleconstruction and may be cheaply and easily manufactured as well aseasily operated.

With the above and other objects in view the invention has particularrelation to certain novel features of construction, operation andarrangement of parts, an example of which is given in this specificationand illustrated in the accompanying draw ings, wherein z- Figure l is aplan view of the gin partly broken away, and

Figure 2 is a vertical sectional view of the gin.

Referring now more particularly to the drawings, the numeral l indicatesa suitable frame-work to which the stationary circular casing 2 issecured by means of the bolts 3. The bottom of this casing is flat butthe top is formed into a funnel et. Within the casing there is anannular rotary turbine 5 which is frusto-conical in general contour andhas an open center. This turbine has radiating spokes, as shown by whichit is fixed to the inner end of a hollow shaft 6 which works in acentral bearing in the bottom of the casing and whose lower end has abeveled gear wheel 7 fixed thereto which is in mesh with a similar gearwheel 8 which is fixed on the drive shaft 9. ylhe turbine is somewhatless in diameter than the casing and has the projecting wings or bladesl0 spaced apart which are enclosed by the casing and which sweep aroundthe casing, as the turbine rotates, forming in effect a fan. The conicalface of the turbine is exposed through the hopper d and is provided withan abrading surface ll, preferably consisting of spiraled corrugations.

fieri-a1 No. 425,392.

surface ll. rilhe operative faces, or edges of Vthese blades are reversey spiraled with rea0 spect to the corrugations of the face ll.

Extending rearwardly from each blade there is a fan shaped housing l5which lies close against the surface ll and. whose outer ends aresecured to the inner margin of the hopper il.

ln operation, the turbine is driven at a rapid rate of speed and theseed cotton is fed down through the hopper falling onto the abradingsurface ll of the turbine ahead of the stripper blades. is the turbinerotates the seed will be arrested by said blades and the suction of tlfans will strip the lint from the seed, said seed being retarded by thestripper blades. The corrugations of the abrading surface cooperatingwith the blades will cause the seed to gradually travel up the abradingsurface 1i and gradually work into the open center i3, of said turbineand fall then into the casing, from which the seed are then dischargedby any conventional type of conveyor.

The suction of the fans 10 will strip the lint from the seed and drawthe cotton into the casing 2 and it will be discharged by the fans outthrough the discharge spout 14.

What we claim is:

l. A cotton gin, including a casing whose upper side is formed into ahopper, a frustoconical shaped turbine therein having an abradingsurface which is exposed through said hopper, radiating bladesprojecting from said turbine and spaced apart there around, stripperblades fined to the casing and disposed to cc-operate with the abradingsurface to arrest the seed as the turbine is rotated and separateoutlets from the gin for the seed and lint respectively.

2. A cotton gin, including a fixed circular casing whose upper side isformed into a hopper, a frusto-ccnical shaped turbine therein having anabrading surface which is exposed through said hopper, means forrotating said turbine, radiating blades fixed tc the turbine and spacedapart therearound, stripper blades fixed to the casing and disposed tocooperate with said abrading surface and means for rotating `theturbine.

3. A cotton gin including a circular cas ing whose upper side is formedinto a hopper, a rotary turbine Within said easing formed with anabrading surface substantia11y'fiiistocoiiioai in forni, and exposedthrough said hopper, blades radiating from the turbine and spaced apart,stripper blades fixed to the hopper and spaced apart around the turbine,and disposed to cooperate With said abradng surface, and means forrotating said turbine.

In testimony whereof We have signed our 10 naines to this specificationin the presence of two subscribing Witnesses.

CHARLES L. DICKERMAN. VILLIAM E. CUMMINGS Vitnesses WM. A. CATHEY,

LORENA FAHRENTHOLD.

